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## Get one month span? Formula, minus one day in month formula

Hey

I am using this formula:

`startOfMonth(getPastTime(1,'MONTH'),'yyyy-MM-dd')`

to print the date of the first day in the month before the current one.

so to run this in october i would get october 1th

then i use this formula:

`startOfMonth(utcNow(),'yyyy-MM-dd')`

to print the first day in the current month.

now i want to print the first day in the current month minus 1 day (-1 day)

how can i do this?

2 ACCEPTED SOLUTIONS

Accepted Solutions
Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

If you want to get all events last month, please refer to this method:

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

Using starts with to compare Date  can avoid some problems.

In my experience, it is difficult to define whether the end of the day is 00:00:00 or 23:59:59, so I generally do not include time.

Or you could use 2019-09-01/2019-10-01 to filter events, I think the result is the same as starts with.

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
13 REPLIES 13
Dual Super User

## Re: Get one month span? Formula, minus one day in month formula

`adddays(startOfMonth(utcNow(),'yyyy-MM-dd'),-1)`

--------------------------------------------------------------------------------
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Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

Please try to use this expression:

`addDays(startOfMonth(utcNow()),-1,'yyyy-MM-dd')`

Besides, you could get more details about WDL function from this online doc:

https://docs.microsoft.com/en-us/azure/logic-apps/workflow-definition-language-functions-reference

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Level: Powered On

## Re: Get one month span? Formula, minus one day in month formula

Thank you.

I have now another problem.

If i chose to do the -1 on adddays function.

I see that i get the timestamp for example like this: 2019-09-30T00:00:00.0000000Z

Date is correct, i get the day behind the first of the next month.

But time. Does 00:00:00 mean the START of that date or the end of that date?

Goal is to get all events during the last day of the month.

So it might be better to use the first filter i had, where i get this timestamp: 2019-10-01T00:00:00.0000000Z

but only if 00.00.00 time means the first thing on that date. then i am sure ill get everything during the timestamp 2019-09-30

hope im clear enough

Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

Have you tried to use the expression I provided?

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Level: Powered On

## Re: Get one month span? Formula, minus one day in month formula

yes works fine

but i need to know how the timestamp works.

Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

If you want to get all the events during the last day of the month.

Please refer to the following method:

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Level: Powered On

## Re: Get one month span? Formula, minus one day in month formula

but using that formula i get the timestamp for example: 2019-09-30T00:00:00Z

And the time is bothering me. Because 00,00,00 means the Start of the day, first second first minute of september 30th.

If i would want all events from the last day of the month i would need to have the timestamp less than : 2019-09-30T23:59:59Z

Goal is to get all events from the first second on the first day of the month to the last second of that month.

GREATER THAN: 2019-09-01T00:00:00Z

`startOfMonth(getPastTime(1,'MONTH'),'yyyy-MM-dd')`

this works great, i get the first day on the past month and timestamp is the first second of that day so i get everything from the first day and onwards.

LESS THAN: 2019-09-30T23:59:59Z

`addDays(startOfMonth(utcNow()),-1,'yyyy-MM-dd')`

above formula would however not produce the time 23.59.59.

above formula would produce 00.00.00 and that means records from that day would not be part of my selection.

then maybe removing the -1 and get the timestamp: 2019-10-01T00.00.00Z is better

since it would mean i get items before the start of october 1.

Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

If you want to get all events last month, please refer to this method:

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Level: Powered On

## Re: Get one month span? Formula, minus one day in month formula

how come you just copy paste the last post?

the question still applies that i have about the timestamp since the timestamp do appear when i run your formula and the timestamp indicates that i do not get values from the last day since the timestamp is set to the START of the last day, not the END of the last day.

00:00:00 indicates to me that it is in the beginning of that day, not just before that day ends.

the scope should be day 1-31

if i have the timestamp day 31 at 00:00:00 i will not get that day since i use "less than" formula in my filter.

so i need the timestamp to be less than 23.59.59

if im wrong, explain why the timestamp does not matter.

not just posting the same thing without any explaination.

Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

Please take a closer look at the expression in the screenshot, they are not the same.

One is yyyy-MM-dd, other one is yyyy-MM.

Since you need the event for the entire month of September, you only need to check if the event start time starts with 2019-09, so I used starts with.

In addition, September only has 30 days.

Hope it makes sense.

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Level: Powered On

## Re: Get one month span? Formula, minus one day in month formula

yes that makes 100% more sense now!

my mistake for not noticing the missing -dd

but now im very curious to understanding the differense

would i get the same result if filtering on "2019-09 (startswith)"

or filtering by "greater than 2019-01-01T00:00:00Z and less than 2019-10-01T00:00:00Z"

would the end result be the same, including all days in september at all times?

Community Support Team

## Re: Get one month span? Formula, minus one day in month formula

Hi @Oskarkuus ,

Using starts with to compare Date  can avoid some problems.

In my experience, it is difficult to define whether the end of the day is 00:00:00 or 23:59:59, so I generally do not include time.

Or you could use 2019-09-01/2019-10-01 to filter events, I think the result is the same as starts with.

Best Regards,

Community Support Team _ Barry
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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